340/420 90psi Oil Pressure During Prime

DC:
As soon as the break in is complete, I will change the filter and the break in oil. I will then start watching the oil pressure and hope that it comes down a little before or during the test driving. I am assuming that the Isky cam grease and all of the assembly lube are showing up in the oil pressure too. I did not use that grease sparingly, and every time I had to spin the crank/cam (setting lash, checking push rod interference, checking coil binds) I added more of that stuff on each lobe. The Isky grease is some pretty thick stuff.

Thanks for the heads up!

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